857002154650423 has 2 divisors, whose sum is σ = 857002154650424. Its totient is φ = 857002154650422.

The previous prime is 857002154650333. The next prime is 857002154650457. The reversal of 857002154650423 is 324056451200758.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-857002154650423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857002154650123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428501077325211 + 428501077325212.

It is an arithmetic number, because the mean of its divisors is an integer number (428501077325212).

Almost surely, 2^{857002154650423} is an apocalyptic number.

857002154650423 is a deficient number, since it is larger than the sum of its proper divisors (1).

857002154650423 is an equidigital number, since it uses as much as digits as its factorization.

857002154650423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 52.

The spelling of 857002154650423 in words is "eight hundred fifty-seven trillion, two billion, one hundred fifty-four million, six hundred fifty thousand, four hundred twenty-three".